Bltouch smart setup

Hello I starting working toward setting up the bltouch smart to home and probe for z. I used the info off duet 3d site. I don't seem to be able to deploy and retract the probe.; Configuration file for Duet Ethernet (firmware version 1.17 to 1.19)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Sat Nov 25 2017 12:15:39 GMT-0500 (Eastern Standard Time)